Blue-print machine.



n No. 775,232. y PATBNTED Nov. 15, 1904.

H. A. BUGHHOLZ & E. J. G. RADEMAGHER.

BLUE PRINT MACHINE.

APPLICATION FILED MAR.. 22, 1904. H0 MODEL. k 3 SHEETS-SHEET 2.

` fijn", 4

l. ,PATENTED Nov. 15, 19042 H. A. BUGHHOLZ & E. J. G. RADEMAGHER.

BLUE PRINT MACHINE.

APPLICATION FILED MAR. 22, 1904.

3 SHBBTSBHEBT 3.

N0 MODEL.

e. l o f n. /f n. r n A n f .s o

No 775,232. i

UNITED, STATES.

Patented November 15, 1904..

PATENT OFFICE.-

A. BUoHHoLZ AND EMIL J. eRADEMAcHER, 'or NEW YORK, N. Y.

BLUE-PRINT MACHINE.

SPECIFICATION forming part of Letters Patent No. 775,232, dated November 15, 1904.

Application filed Iarch 22, 1904. Serial No. 199,369. (No modell `.To fallu/hom, it rim/y concern:

Be it known that we, HENRY A. BUcHHoLz,

- a citizen of the United States, and EMQIL J. G.

RADEMACHER, a subject of the King of Denmark,` both residing in the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Blue-Print Machine, of which the fola simple form of machine especially adapted i lowing is a full, clear, and exact description. The purpose of our inventionv is to provide for making blue prints or photographic prints -from tracings on transparentmaterial ordraw- Iing-paper especially adapted for the purpose,

and to so construct the machine that properly prepared paper in the form of a reel is protected from the llight and held in arevoluble Vmanner in the machine in a suitable receptacle, and to provide-means forfeeding the prepared paper in connection with the tracingcloth or other material from'which ya print is to be made beneathatransparent pane which will uniformly hold the sensitive paper and the tracing-cloth or other material-containing the designs to be copied in smooth and closey relation to each other.

Another `purpose of the invention -is to provide means for subjecting the transparent pane .to a strong artificial light, together with means for protecting and curling the exposed porceived an exposure. v

The invention consists in the n ovel construc-4 tion and combination of the several parts, as will be hereinafter fully set-forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation ofthe machine. Fig. 2 is a detail sectiontaken practically on the line 2' 2 of Fig. 1. i Fig. 3 is a vertical section taken substantially on the line 3 3 of Fig. 1. Fig. 4 lis a section taken lat right angles to that shown in Fig. 3 and on the line44 of said Fig. 3. Fig. 5 is adtail vertical section -of the receptacle containing the reel of sensisimilar means for artificially supplying light vto a trans-parent panel, which issuitably on` the line 5 5 of Fig-.6i` 'and Fig. 6 is ahori- 5o nected by bolts 10 in any approved manner,

and at the upper central portion of each side piece A a concaved surface 11. is formed, as'

is shown in Fig. 1, and above this concaved surface 11 of the frame-a light-box 1'2y islocated, iitted'to the said surface and connected' with the frame by means of hinges 13, so that the light-box may be lifted up from the frame to the dotted .position shownV inv Fig.' 1; but the said light-box may be somade as to be entirely independent of the frame. v f The light-box 12 is provided withilluminating-tubes 14: and with .incandescent lights or supported at the upper portion of the frame,

having an upper concaved and a lower convexed surface, and this transparent pane l5 is provided at its delivery end with a shield 16, adapted to protect the said sensitized paper from the light, and at the opposite'e'ndgof the said transparent pane another shield, 17, is

located, --which servesto protect Ithe paper o from the light before it is introduced beneath the transparent pane and likewise serves to guide the tracing 17 or other material containing the design which is to be'printedfrom.`

A conveyer-belt 18 is made to pass at its upper stretch in close relation tothe under or convexed surface of the transparent pane 15, and this conveyor-belt is` passed over a roller 19 at the delivery endof the machine, and

this roller 19 is preferablymore or less roughened at its periphery,` and the belt 18 likewisepasses over a preferably smaller roller 2() at ceiving end ofthe transparentv pane, as is' shown in Fig. 4. The belt 18, which is preferably made of felt or other yielding yet clinging material, is made to pass over a lower the receiving end of the machineor' the reroller 21, and the trunnions 22 of this lower i, I roller 21 are. mounted 1n boxes 23, mounted the lower roller 21being threaded to correspondto the threads of the'said screws, the` aforesaid roller may be raised or lowered, so as to place thebelt 18 under more or less tension.

The tracing 17 or draw/ing from which the print is to be made is passed over a table 27 at the forward orreceiving end of the machilien This table 27is `provided with feet 28, which when the "table is in receiving position bearagainst theyy forward edge of the frame, as is shown by positive lines in Figs. -1 and 4, and the said table 27 is provided with side lianges 27a .and is connected with the body of the frame by means of a hinge 27 b or its equivalent, so that this table may be raised up to the position shown by dotted lines in Fig. 1, enabling acasing B to beopenedfor the introduction or removal of a spool on which the sensitized paper C is reeled. This casing-B is preferably pear-shaped, as is shown in Fig. 1, and is in two sections 29 and 30. These sections are pivotally connected, and pivotal relation between the. sections 29 and 30 is obtained by forming circular sockets 31 at the inside portion of the section 29, as is shown .in Figs. 5 and 6', which sockets are open at the' topra'nd in forming eyes 32 in the op- -posing section 30 of the said casing C, adapted to turn around the bearings 31, as is also shown in Figs. 5 and 6. The bearings 31 receive the trun-nions 33 of the spool 34, above referred to, and this '.spool hasconical members 35 adjacent yto each end, the wider portions of which Imembers 35 face outward. When aspool 34 is lconstructed in this way and the sensitized'paper adapted to receive the f yimpression is wound onjthe spool, the inner coils of-the paper bear against the conical members 3'5, and the tendency of the roll of paper on such aspool is to travel outward and not eramp against the spool`,'enabling the pa- .per 36 to befreely drawn ofl'V from the spool and,wit hout a probability ofthepaper being torn, and as the paper leaves the spool 34 it 'is passed over the blank'et eonveyer orf-belt 18 at the top beneath the transparentpane 15,y

.while at the same time the tracing 17* orl other material containing' the 'designfto be trans' close relation from oneend of the transparent pane to the other, and the exposure will have been fully made when the material has reached the rear or delivery end of the said transparent pane, whereupon the tracing will pass over a rear table 39, also provided with side flanges 41, and this table is removably and adjustably secured to the rear portion of the frame of the machine by means of suitable brackets controlled by thumb-nuts 40 and bolts, as is shown in Fig. 4. e

When a roll of sensitized paper 36 is to be placed in the receptacle B, the member or section 30 is dropped downward to the dotted position shown in Fig. 4, and when this dropped member; is closed a lip 37 at the normal upper end of the said member or section 30 will be brought `in to engagement with a pin 38, and such engagement servesto hold the said section 30 in its closed position, and the lip 37, in conjunction with the forward shield 17 on the transparent pane 15, prevents the light from reaching the sensitized paper in the said receptacle B.

After the sensitized paper has been acted upon by the light in the light-'box 12 and as the said paper passes` over the feed-roll 19 the exposed portion of the paper 36 is received in a practically open receptacle D, which isI AIOO The blanket' conveyer or belt 18 isoperated, v

sponding diameter, vand this gear 46 meshesy IIO with the inhermost idlerpinion 47 of a train of pinio s/whic'h ,operate the 'rollers' 42, car-- `ried by the receiverD -for the exposed port'ion of the sensitive paper. Theidle pinions 47 are in mesh with each other and are likeV- wise in mesh with pinions 47 7' of correspond- -IZO -ing Size-secured tothe outer trunnions of the f rollersv42 at thatsideof the machine at lwhich the 'driving mechanismlsislocated.

- 'f It will thus beob'ser'ved that underithe con;

lstruction above described` a machine is provded'by-means of which blue-prints or similar prints may be taken no matter what the character of the weather may be and ,that the machine is exceedingly simple and durable and is effective in operation. It is furthermore obvious that a tracing, no matter of what length it-may be, can be passed uniformly in engagement with the sensitized paper beneath the rays of light andthe sensiti'zed paper delivered in its exposed condition to the receiver' D, and after the 'desired exposures have been made it is simply necessary to cut the sensitive paper as near as may be convenient to the feed-roller 19. l

As the light-box is removable, convenient access may be gained at any time to the transparent pane, and the shields 16 and 17 at the ends of the transparent pane enable the tracing and the sensitized paper'to be 'readily introduced between the blanket conveyer 18 and the said transparent pane and to find an unobstructed exit at the delivery portion of the two named parts.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In a machine for duplicating drawings and designs, a stationary. support, a conveyer for the material to receive the impression and the material from which the impression is to be made, a curved transparent panel secured tothe support in xed position, the said panel having its lower face convexed and against which the conveyer has tensional engagement, and means located above the transparent panel for supplying light to the same.

2.v In a machine for duplicating drawings and designs, a support,` a curved transparent pane secured tothe support, and having its lower face convexed, an illuminating-box located over the said transparent panel, a conveyer operating relative to the convexed face of the transparent panel, the said conveyer being adapted to receive a sensitized strip,

and a strip from which a duplicate isto be.

made, and convey the same beneath the said transparent panel, as set forth.

3. In a machine for duplicating drawings and designa-a supporting-frame having Iside -pieces each provided with a concaved surface at its upper central portion, a curved 'transparent panel' secured tothe said supportingframe and located between the side pieces, a curved box adapted tocontain illuminators,

located above the said transparentpanel and' fitted to the said concaved surface of the side pieces of the'frame, a conveyer-belt adapted to have one of its stretches conform to and in close relation with the said transparent panel, roller-supports for the conveyer, and a driving mechanism for the roller-supports, as described. y

4. In a blue-print machine, a support, a transparent panel, secured to said support, a conveyer for the sensitized paper operating in close relation .to the transparentpanel, a receptacle carried by the said support, a reel located in the said receptacle, and adapted to. carry sensitized paper, the said receptacle be-- ing at the receiving end of the-machine, and a receiver at the opposite end of thexmachine, adapted to receive the'exposed portion of the paper, means for curling the material received 4in the receiver, an actuating vdevice for the conveyer, actuating devices for the curling means for the receiver, operated by the actuating device for-the conveyer, and means for illuminating the said transparent panel, as described. l

5. In a blue-print machine, a frame, a concave transparent panel having shields at its ends and located inthe frame,'means for illuminatingthe upper portion ofthe transparent panel, a conveyer having a stretch conforming to the convexed portion of the transparent panel, roller-supports for the conveyer, adriving mechanism for one of the roller-supports,

a receptacle for a sensitized paper, located at the receiving endof the machine,`a take-up device located at the opposite end ofthe machine, and adriving mechanism for the said take-up device, actuated by the driving mechanism for the conveyer, as described.

6. In a blue-print machine, ay receiver for theexposed material, rollers carried by the receiver and adapted to operate in the same direction on the material in the receiver, to curl said material, as described.

7 In a blue-print machine, a frame, a curved transparent panel having its upper face con-` caved and its lower face convexed, and a conveyeroperating in connection with and Vin close proximity to the convexed surface of said transparent panel, supporting devices for the conveyer, a driving device for one of the supporting devices, and a box located over the concaved face of the said transparent panel, which box contains illuminating objects, as described, the rays from which objects are directed to said paneLas set forth.

ltwo sections,f pivotally connected, a latch devvice for one of said sections, means for holding the other section to la support, bearings constituting pivotal connections between the sections, and a spool having its ends mounted IOO IIO

in the said bearings, which spool is provided with conical end sections, the wider portions of which conical sections face outward, as der scribed.

9. In a blue-print machine, a supportingframe, a concave transparent panel having shields at its ends and located in the frame, means for illuminating the upper portion of the transparent panel, a conveyer having a stretch conforming to the convexed face of the transparent panel, means for driving the conveyer, a receptacle for sensitizedmaterial located at the receiving end of the machine, a

table at the receiving end of the machine lonames to this specification in the presence of cated above the said receptacle, a receptacle two subscribingwitnesses. for the exposed sensitized material at the de- HENRY A. BUCHHOLZ. livery end of the machine, and a table located EMIL J. G. RADEMACHER. 5 above .said lreceptacle, for the purpose set Witnesses:

forth. J. FRED. ACKER, In testimony whereof We have signed om` lJN0. M. RITTER. 

